Organic EL display panel

Abstract

The main object is to provide an organic EL display panel capable of achieving the electromagnetic wave blocking effect without providing newly an electromagnetic wave blocking layer, and to provide an organic EL display panel having a barrier film with an uniform composition even in the case it is produced using an in line type device, capable of preventing the light emission deterioration of the organic EL due to the gas outputted from the base member, such as the oxygen and the moisture. The organic EL display panel comprises a base member, an organic EL element, and a barrier layer provided between the base member and the organic EL element, wherein the barrier layer comprises two kinds of laminated inorganic films, the inorganic film on the base member side out of the two kinds of the inorganic films is an inorganic oxide film having the conductivity, and the inorganic film on the organic EL element side is an inorganic film having the gas barrier property and the insulation property.

1 . An organic EL (electroluminescene) display panel, comprising a base member, an organic EL element, and a barrier layer provided between the base member and the organic EL element. 
 wherein the barrier layer comprises two kinds of laminated inorganic films, the inorganic film on the base member side out of the two kinds of the inorganic films is an inorganic oxide film having the conductivity, and the inorganic film on the organic EL element side is an inorganic film having the gas barrier property and the insulation property.    
     
     
         2 . The organic EL display panel according to  claim 1 , wherein the inorganic film on the base member side out of the two kinds of the inorganic films forming the barrier layer is made of either of an indium tin oxide or an indium zinc oxide, and the inorganic film on the organic EL element side is made of an aluminum nitride, a silicon nitride oxide, a silicon oxide, or an aluminum oxide.  
     
     
         3 . The organic EL display panel according to  claim 1 , wherein the two kinds of the inorganic films forming the barrier layer are formed by the sputtering method.  
     
     
         4 . The organic EL display panel according to  claim 1 , wherein the barrier layer comprising the two kinds of the laminated inorganic films is formed by laminating two or more layers repeatedly.  
     
     
         5 . The organic EL display panel according to  claim 1 , wherein a color filter is provided facing the base member with the organic EL element interposed therebetween, and the color filter has the gas barrier property and the conductivity.